Home / 148,899.24-205,481.79-80,916.78

Finding the Fourth Proportional to 148,899.24, 205,481.79 and 80,916.78

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Solution

The fourth proportional to 148,899.24, 205,481.79 and 80,916.78 is: 111,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,899.24 : 205,481.79 = 80,916.78 : x
  2. Step 2: Convert to fraction form
    148,899.24/205,481.79 = 80,916.78/x
  3. Step 3: Cross multiply
    148,899.24x = 205,481.79 × 80,916.78
  4. Step 4: Simplify right side
    148,899.24x = 16,626,924,795.44
  5. Step 5: Solve for x
    x = 16,626,924,795.44/148,899.24
  6. Step 6: Final answer
    x = 111,665.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.